Horseshoe



No.- 6|3,883. Patented Nov. 8,1898. K

P.- & J. P. HDPPESCH. v

H 0 B S E S H 0 E. (Application led lNov. 8, 1897.)

(No Model.)

UNITED STATE/sA PATENT OFFICE.

PETER IIOPPESCH AND JOHN P. HOPPESCIL' OF CHICAGO, ILLINOIS.

HroRsjEsHjo E.'

SPECIFICATION forming part of Letters Patent No. 613,883, dated November 8, 1898.

) Application filed November 8, 1897. Serial No. 657,766. (No model.) I

To all whom it may concern- Be it known that we, PETER HOPPESCH and JOHN P. I-IoPrEscH, citizens of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in I-Iorseshoes and Calks, of which the following is a specification.

Our invention relates to horseshoes having a recess therein and a calk consisting .of a bent or curved spring-metal plate adapted to be sprung into said recess and held therein by the resiliency of the calk-plate. l

The object of our invention is to provide improved means for securing the said spring calk-plate within the recess, and a further object of our invention is to provide the spring calk plate with means which will not only support the calk more securely upon the shoe, but will also admit of its removal therefrom in a simple manner, as will hereinafter appear.

In the accompanying drawings, Figure 1 is a perspective view of a horseshoe with the toecalk and one of the side calks secured thereto; Fig. 2, a perspective view of one of the side calks removed from the shoe. Fig. 3 is a plan of a portion of one side of a horseshoe, the calk being removed; Fig. 4, a transverse sectional elevation taken at a point indicated by the line a; Fig. 3; Fig. 5, a plan view of a calk removed from the shoe, the full lines showing the calk before insertion and the dotted lines showing the partly-straightened outlines of the calk after insertion; Fig. 6, a side elevation of one of the calks and adjacent parts of the shoe in section and a side elevation also of the jaws of a pair of tongs for removing the calk-plate from the shoe.

The shoe Ais forged with two side and one toe recess a, of like shape, slightly curved in plan view and tapered upon their inner sides a', as shown in Figs. 4 and 6. A segmentalshaped calk-plate B is made of spring-steel curved longitudinally and more sharply than the curve of the recess a of the shoe into which it is to be fitted and is provided with a shank b, tapered upon its inner sides b to conform to the correspondingly-tapered inner sides a of the recess ein the shoe. The calk B also has shoulders b2 at each end thereof which project beyond the shank b and rest upon the top ofthe shoe at the ends of the recess ct, thus to give a secure footing for the calk-plate and prevent its being hammered when in use into the recess which receives the said shank. The shank b is also tapered slightly at its ends b3 to admit of its being more easily pried out from the recess by means of tongs C, the jaws c of which grip the shoulders b2 of the calk-plate and take secure hold thereof 4while the tongs are rocked to withdraw thelcurved spring calk-plate from the recess, the ends of the said plate bending and yielding under the pressure of the tongs sufiiciently to admit of the tapered shank b of the calk to be withdrawn from the correspondingly-tapered recess of the shoe.

The calk may be sprung into the recess by pinching and straightening the curved calkplate with pincerssufciently to admit of its being pressed into the recess, after which the plate will spring back into its normally-'curved shape and press with its bowed central part against the outer side of the recess, thus foreing the tapered inner side of the calk-plate against the correspondingly-tapered inner side of the recess in the shoe, thus securely holding it thereon. The spring or bow of the calk and the amount of taper lof the calk shank are so proportioned, as shown by the plan of the calk in full lines and the upper edge of the recess of the shoe by dotted lines, Fig. 5, that the tapered shank of the calk can be inserted at the mouth of the recess and then driven fully into the same. The tapered walls of the recess serve to spread the curve of the calk until the shank iits and firmly binds the greater curve of the said recess and thus, together with the wedge-shaped fastening, serves to securely hold the calk upon the shoe at all times and under the various strains and jars to which it is subjected.

It is apparent that the degree of curvature of the calk may be either greater or less than that of the recess in the shoe, the object of Asuch difference being merely to spring or bind the one within the other.

vThe tapered shank of the calk completely lls ythe recess in the shoe and is solid there# with when driven in place, thus being adapted to hold thecalk securely and not work loose when the toe of the calk strikes with its IOO bowed side against a stone or other article, which Would tend to loosen the calk if the call: could yield Within the recess, which would be the case if the Walls of the recess Were parallel and the calk held therein by the segmental form and elasticity of the calk.

lith the calk constructed and operating as herein described it will be driven at each step and at each blow received by it rmly in its tapered seat or recess and will be securely held therein until Worn down to the shoe unless removed from the shoe manually and substantially in the manner described.

XVe claim as our invention and desire to secure by Letters Patentl. A horseshoe-calli consisting of a segmental plate of spring-steel having a tapered shank and end shoulders and adapted to be sprung into a curved recess having correspondingly-tapered sides and of different radius of curvature than that of the calk, substantially as described.

2. A horseshoe having a curved segmental recess formed therein, the sides thereof being inclined and converging outwardly to form a tapered segmental recess, in combination With a call; of different curvature having a shank formed With tapering sides and corresponding dimensions with the inclined Walls of the recess, and adapted to be sprung into and fit solidly Within said recess, substantially as described.

In testimony that We claim the foregoing as our invention We have signed our names in the presence of two subscribing Witnesses.

PETER IIOPPESCII. JOHN P. HOPPESCH. W'itnesses:

KATE D. MERRILL, M. A. CARROLL. 

